有关基本计算机的简单问题 [英] simple question about basic computer

问题描述

1)L1高速缓存和寄存器是同一时间意味着它是两个不同的事物还是仅一个事物?

1) L1 Cache and register is same time means it is two different things or only one thing?

推荐答案

两个不同的事物:
寄存器是整个处理器中很小的数据单元-通常与处理器可以处理的宽度相同，分别为8位，16位，32位或64位-尽管出于各种原因，某些寄存器可能会更小.这样的数据永远不会离开处理器，而无需执行特定的指令来传输它.
L1高速缓存是处理器内部的一个内存区域，用于保存通常驻留在处理器外部的信息，因此在继续之前，它不必等待对外部的读取或写入信息.

Wiki很好地解释了此处的缓存: http://en.wikipedia.org/wiki/CPU_cache [ ^ ]

Two different things:
A register is a small unit of data entirely within the processor - normally the same width as the processor can handle, 8 bit, 16 bit, 32 bit or 64 bit - although some can be smaller for a huge variety of reasons. Such data never leaves the processor to get to the outside world without a specific instruction being executed to transfer it.
A L1 Cache is an area of memory within the processor which is used to save information that normally resides outside the processor, so that it does not have to wait for it to be read or written to the outside world before continuing.

Wiki has a good explanation of caching here: http://en.wikipedia.org/wiki/CPU_cache[^]

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